Base | Representation |
---|---|
bin | 11010011111110010… |
… | …010110111111001111 |
3 | 2201102202210100010000 |
4 | 122133302112333033 |
5 | 431231322114404 |
6 | 21023042415343 |
7 | 2025013650414 |
oct | 323762267717 |
9 | 81382710100 |
10 | 28450582479 |
11 | 1107a680790 |
12 | 5620061553 |
13 | 28b538c8b7 |
14 | 153c76010b |
15 | b17abc339 |
hex | 69fc96fcf |
28450582479 has 80 divisors (see below), whose sum is σ = 48340727424. Its totient is φ = 16522833600.
The previous prime is 28450582421. The next prime is 28450582483. The reversal of 28450582479 is 97428505482.
28450582479 is a `hidden beast` number, since 2 + 8 + 4 + 50 + 582 + 4 + 7 + 9 = 666.
It is not a de Polignac number, because 28450582479 - 224 = 28433805263 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28450582499) by changing a digit.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2023584 + ... + 2037594.
Almost surely, 228450582479 is an apocalyptic number.
28450582479 is a deficient number, since it is larger than the sum of its proper divisors (19890144945).
28450582479 is a wasteful number, since it uses less digits than its factorization.
28450582479 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14130 (or 14121 counting only the distinct ones).
The product of its (nonzero) digits is 6451200, while the sum is 54.
The spelling of 28450582479 in words is "twenty-eight billion, four hundred fifty million, five hundred eighty-two thousand, four hundred seventy-nine".
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